Grinding tool linear starting method

Abstract

The invention discloses a grinding tool linear starting method, and belongs to the technical field of machine tool electromechanical matching control. By defining storage parameters, monitoring state data resources and recognizing grinding tool motor and PLC signal states, the data are judged, steps are executed according to the machining technology, and grinding tool machined part hardware is moved. The method has the advantages that according to the strategy and a built-in PLC program of the system, related parameters such as grinding tool rotating speed starting control time and the like are confirmed by combining mechanical design and a machining process, the PLC program can monitor and judge data, and the functional requirements of different systems can be safely and reliably met.

Description

Technical Field

[0001] The invention relates to a method for linear starting of a grinding tool, belonging to the technical field of control of electromechanical matching of machine tools. Background Art

[0002] At present, customers have higher and higher requirements for machining accuracy. The machining technology level is also constantly improving, from the original precision and ultra-precision machining to the current nano-level machining. There are three stages in grinding, namely the starting stage, the formal stage and the ending stage. The grinding tool rotates at an increased speed in the starting stage, the grinding tool rotates at a constant speed in the formal stage, and the grinding tool rotates at a reduced speed in the ending stage. At the beginning of the grinding process, the acceleration of the grinding tool speed is artificially controlled to increase from zero from slow to fast. When the grinding tool speed rises to half of the formal grinding speed, the change in acceleration has an inflection point, and the acceleration of the grinding tool speed is controlled to decrease from the maximum value from fast to slow until the grinding tool speed reaches the formal grinding speed and the acceleration of the grinding tool speed drops to zero.

[0003] Disadvantages of the existing technology:

[0004] Surface damage: In the current processing, that is, direct grinding, sudden high-intensity processing causes damage to the mold surface. And destroy the fine structure and surface quality of the mold.

[0005] Unsteady grinding quality: In the current processing, i.e. direct grinding, sudden high-intensity processing makes it difficult to control the grinding process and cannot gradually achieve the required surface finish. It does not help to ensure that the surface of the mold reaches a higher polishing quality, including a smoother and brighter surface. Reduced mold life: In the current processing, i.e. direct grinding, sudden high-intensity processing causes impact and damage to the mold surface, which affects the service life of the mold. The life of the mold is closely related to the quality and integrity of its surface.

[0006] Reduced production efficiency: In the current processing process, that is, direct grinding, the sudden high-intensity processing causes rework and repair time due to surface damage to the mold, which indirectly reduces production efficiency. In addition, unstable and low-quality processing surfaces increase the defective rate in the production process, thereby reducing overall production efficiency.

[0007] Unfavorable working environment: In the current processing, that is, direct grinding, sudden high-intensity processing will generate noise and vibration, thus creating an unfavorable working environment. This is harmful to the health of operators and to improving their work efficiency. Summary of the invention

[0008] The present invention aims at solving the problems in the prior art and provides a method for linear starting of a grinding tool.

[0009] A method for linear starting of a mold includes the following steps: using defined storage parameters and monitoring status data resources and identifying the status of a mold motor and a PLC signal, judging these data, and executing steps according to a processing technique to move the mold processing part hardware.

[0010] The advantages of the present invention are: according to this strategy and the built-in PLC program of the system, the relevant parameters such as the mold speed start control time are confirmed in combination with the mechanical design and processing technology. This PLC program can monitor and judge the data and can safely and reliably meet such functional requirements of different systems.

[0011] The advantages of linear start of the mold may involve multiple aspects. Combined with other possible "slow start" concepts (referring to the strategy of gradually increasing force or speed during movement), the advantages are:

[0012] Reduce surface damage: During the polishing process, if a slow start is adopted, that is, gradually increasing the grinding or speed, it can help reduce the damage to the mold surface caused by sudden high-intensity polishing. This helps to protect the fine structure and surface quality of the mold.

[0013] Improve grinding quality: Soft start allows manual or machine grinding to start at a lower speed and force, making it easier to control the grinding process and gradually achieve the desired surface finish. This helps ensure that the surface of the abrasive tool achieves a higher polish quality, including a smoother and brighter surface.

[0014] Extended tool life: By reducing shock and damage during machining, soft starts may help extend the life of the tool. The life of the tool is closely related to the quality and integrity of its surface, so it is important to protect these surface characteristics through more delicate machining processes.

[0015] Improved production efficiency: Although slow start itself may not directly increase polishing speed, it indirectly improves production efficiency by reducing rework and repair time caused by surface damage. In addition, high-quality machined surfaces help reduce the defective rate in the production process, further improving overall production efficiency.

[0016] Improve the working environment: During the processing, soft start may help reduce noise and vibration, thereby improving the working environment. This is beneficial to protecting the health of operators and improving their work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] When considered in conjunction with the accompanying drawings, the present invention can be more completely and better understood and many of the accompanying advantages can be easily known by referring to the detailed description below, but the drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention, as shown in the figure:

[0018] Figure 1 It is a flow chart of the present invention.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0020] Obviously, many modifications and changes made by those skilled in the art based on the purpose of the present invention belong to the protection scope of the present invention.

[0021] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when an element or component is said to be "connected" to another element or component, it may be directly connected to the other element or component, or there may be an intermediate element or component. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0022] It should be understood by those skilled in the art that unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art.

[0023] Example 1: Figure 1 As shown, a method for linear starting of a mold includes the following steps: utilizing defined storage parameters and monitoring status data resources, as well as identification of the mold motor and PLC signal status, judging these data, and executing the steps of the processing technology to move the hardware such as the mold workpiece.

[0024] Storage parameters: grinding time S, grinding speed r, slow start time s, grinding compensation, processing count.

[0025] To read the conversion settings, the steps are:

[0026] Step 1: When receiving the start command, start the processing program and make a safety judgment;

[0027] Step 2, read the process parameters, i.e. the linear starting speed, starting time and stopping time of the mold;

[0028] Step 3: The PLC calculates the acceleration of the servo motor according to the algorithm by reading the process speed and start-up time. The PLC changes the acceleration value of the servo motor to achieve the effect of linear change of the motor speed.

[0029] Algorithm description: After receiving the start signal, the servo motor starts to increase its speed linearly from 0rpm according to the set time in the package module to achieve a slow start effect. After reaching the set speed, it outputs an in-place mark signal to notify the device control action to execute the next step. Through this algorithm, the tool and the workpiece can be better and more fully contacted, thereby improving processing efficiency.

[0030] Step 4: The mold motor starts and matches the linear start speed and time read in until the set speed is reached. When the processing is completed, the mold motor matches the stop time read in until the motor speed reaches a stationary state.

[0031] According to this process, in response to different system configurations of machine tools, satisfactory results can be achieved by implementing the above monitoring and usage strategies based only on system resources without adding additional hardware.

[0032] Example 2: Figure 1 As shown, a method for linear starting of a mold includes the following steps: utilizing custom storage parameters and monitoring status data resources, as well as identification of the mold motor and PLC signal status, judging these data, and executing the steps of the processing technology to move the hardware such as the mold workpiece.

[0033] Using the system function program includes: defining parameters, reading conversions and setting function application conditions;

[0034] Start the processing program: When the system receives the need to work on the machine tool parts, it starts the judgment function in the program and performs a safety interlock judgment on the position of the machine tool parts. After the interlock is correct, the mold motor works according to the set starting linear speed parameters.

[0035] Processing program stops: When the system receives the processing completion signal, the judgment function stops and the mold motor stops according to the set parameters.

[0036] During the machining operation, the motor speed of the mold is linearly controlled according to the time requirements.

[0037] The parameters and data are read through the PLC program to realize the linear function application of the mold speed. The steps are as follows:

[0038] Step 1: When receiving the start command, start the processing program and make a safety judgment;

[0039] Step 2, read the process parameters, i.e. the linear starting speed and starting time of the mold;

[0040] Step 3: The PLC calculates the acceleration of the servo motor according to the algorithm by reading the process speed and start-up time. The PLC achieves the effect of linear change of the motor speed by changing the acceleration value of the servo motor.

[0041] Step 4: The mold motor starts and matches the linear start speed and time read in until the set speed is reached. When the processing is completed, the mold motor matches the stop time read in until the motor speed reaches a stationary state.

[0042] According to this process, in response to different system configurations of machine tools, satisfactory results can be achieved by implementing the above monitoring and usage strategies based only on system resources without adding additional hardware.

[0043] As described above, the embodiments of the present invention are described in detail, but it is obvious to those skilled in the art that many variations are possible without departing from the inventive point and effect of the present invention. Therefore, all such variations are also included in the protection scope of the present invention.

Claims

1. A method for linear starting of a grinding tool, characterized in that: The method comprises the following steps: utilizing the defined storage parameters and monitoring status data resources and the identification of the status of the mold motor and the PLC signal, reading and judging these data, and executing the steps according to the processing technology to move the mold processing part hardware.

2. A method for linear starting of a grinding tool according to claim 1, characterized in that: It also contains the following steps: Storage parameters: grinding time S, grinding speed r, slow start time s, grinding compensation, processing count, The processing technology contains the reading conversion settings, and its steps are: Step 1: When receiving the start command, start the processing program and make a safety judgment; Step 2, read the process parameters, i.e. the linear starting speed, starting time and stopping time of the mold; Step 3: The PLC calculates the acceleration of the servo motor according to the algorithm by reading the process speed and start-up time. The PLC changes the acceleration value of the servo motor to achieve the effect of linear change of the motor speed. Algorithm description: After receiving the start signal, the servo motor starts to increase its speed linearly from 0rpm according to the time set in the package module to achieve a slow start effect. After reaching the set speed, it outputs an in-place mark signal to notify the device control action to execute the next step. Step 4: The mold motor starts and matches the linear start speed and time read in until the set speed is reached. When the processing is completed, the mold motor matches the stop time read in until the motor speed reaches a stationary state.

Images